/**
 * Utility function to combine CSS class names with conditional logic.
 * Similar to the classnames library in React ecosystem.
 *
 * @param classes A list of class names, objects where keys are class names and values are booleans,
 * or falsy values (which will be ignored)
 * @returns A string of space-separated class names
 */
export declare function classNames(...classes: (string | Record<string, boolean> | null | undefined | false)[]): string;